Mackay, John W.
- Edward L. Lach, Jr.
Mackay, John W. (28 November 1831–20 July 1902), miner and businessman, was born John William Mackay in Dublin, Ireland, the son of parents whose names and occupations are unknown. In the face of poverty, his family immigrated to the United States when Mackay was nine. He briefly attended public school, but his formal education ended when his father died. Faced with supporting his family, Mackay became apprenticed to noted New York shipbuilder ...